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Finding the Fourth Proportional to 288,614.44, 432,978.36 and 88,900.84

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Solution

The fourth proportional to 288,614.44, 432,978.36 and 88,900.84 is: 133,368.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,614.44 : 432,978.36 = 88,900.84 : x
  2. Step 2: Convert to fraction form
    288,614.44/432,978.36 = 88,900.84/x
  3. Step 3: Cross multiply
    288,614.44x = 432,978.36 × 88,900.84
  4. Step 4: Simplify right side
    288,614.44x = 38,492,139,905.82
  5. Step 5: Solve for x
    x = 38,492,139,905.82/288,614.44
  6. Step 6: Final answer
    x = 133,368.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.